Locking device

Abstract

The utility model provides a locking device which is arranged on an electric appliance unit, the electric appliance unit is provided with a first side plate and a second side plate which are opposite to each other, and the locking device is adjacently arranged at the front end of the electric appliance unit and comprises an elastic locking part and a lug boss. Wherein the elastic locking part is arranged on the first side plate, and when the electric appliance unit is arranged in one of the plurality of case accommodating seats along the first direction, the elastic locking part locks the electric appliance unit on the corresponding case accommodating seat and interferes with another electric appliance unit adjacent to the partition plate close to the first side plate; the front end, close to the electric appliance unit, of the protruding part is arranged on the elastic locking part and protrudes outwards from the surface of the elastic locking part in the second direction, the second direction is perpendicular to the first direction, and when another adjacent electric appliance unit is arranged in the first direction or moved out of the corresponding machine case containing base in the direction opposite to the first direction, the protruding part protrudes outwards from the surface of the elastic locking part. The protruding part drives the elastic locking part to move in the direction opposite to the second direction and allows the elastic locking part to be disengaged from another adjacent electric appliance unit.

Description

Technical Field

[0001] This utility model relates to the technical field of locking devices, and more particularly to a locking device applied to electrical units to solve the space utilization problem of electrical units. Background Technology

[0002] In modern daily life, many electronic devices require power adapters to provide the necessary power. Taking a server power supply unit as an example, the power supply unit is typically secured in a server rack using locking devices. Since these locking devices are usually installed inside the power supply unit's casing, they occupy internal space.

[0003] In existing technology, locking devices mainly include a spring plate and a latch. The spring plate is installed on the side panel of the housing, while the latch is set perpendicular to the spring plate, with the pressing direction perpendicular to the length direction of the spring plate. Pressing causes the spring plate to bend and deform, which in turn moves the latch, allowing the power supply unit to be inserted into or removed from the rack housing. Because the latch needs to be pressed during the insertion and removal of the power supply unit, a certain amount of space needs to be reserved in the width direction inside the power supply unit housing to prevent interference between the locking device and other parts inside the power supply unit housing. However, this also reduces the available space in the width direction inside the power supply unit housing. Furthermore, since the locking between the power supply unit and the rack housing is achieved through the locking device, the locking device also occupies space in the rack housing and limits the width of the power supply unit. For multiple rack housings, adjacent power supply units are separated by vertical partitions. However, since adjacent power supply units cannot interfere with each other, the thickness of the partition also occupies a certain width space, thus affecting the overall space utilization.

[0004] On the other hand, power supply units for server applications are increasingly moving towards smaller size and higher power, making the efficient use of internal space in power supplies extremely crucial.

[0005] Therefore, how to develop a locking device for electrical units to solve the space utilization problem of electrical units is a pressing issue that needs to be addressed in this field. Utility Model Content

[0006] The purpose of this invention is to provide a locking device for an electrical unit. The elastic plate, latching part, and pressing plate of the locking device can be integrally formed from a metal sheet to constitute the elastic locking part. The locking device is located at the front end of the housing of the electrical unit, on the first side plate. The latching part of the locking device protrudes outward from the elastic plate and penetrates through the first side plate. When the electrical unit is placed into one of a plurality of side-by-side housings, the elastic plate maintains the latching part through the partition between the first side plate and the housing, further interfering with adjacent electrical units. Therefore, the thickness of the partition can be reduced accordingly, thereby increasing the space in the width direction of the electrical unit, facilitating the placement of internal components, and improving the overall space utilization of the electrical unit. It is worth noting that when two identical electrical units are locked to adjacent housings in a plurality of housings using the locking device of this invention, the two electrical units are respectively attached to opposite sides of the partition by the first side plate and the second side plate. Because the locking device is located on the first side plate, the latching part of the locking device on the electrical unit that is attached to the partition on the first side plate not only penetrates the partition but also engages with the latching slot on the second side plate of another electrical unit, thus securing the two electrical units firmly to the chassis. Furthermore, to prevent the operator from being affected by the locking device of the adjacent electrical unit when inserting or removing a single electrical unit, the locking device of this invention has a protrusion at the front end near the pressing plate, including inward and outward pushing slopes, spatially opposite the latching part of the elastic locking part, and the protrusion height of the protrusion is greater than that of the latching part. When the operator pushes or pulls a single electrical unit, the locking device on the adjacent electrical unit will, through the inward and outward pushing slopes of the protrusion, simultaneously disengage the corresponding elastic locking part, allowing the electrical unit to be inserted or removed smoothly. In other words, through the design of the locking device of this invention, the space in the width and length directions of each electrical unit can be fully utilized to achieve the locking of multiple electrical units in the chassis, while improving the space utilization rate of the electrical units. Furthermore, by using the insertion or removal stroke of the electrical unit to push against the protrusion of the locking device to generate thrust, the locking devices on adjacent sides can be pressed automatically, making operation convenient.

[0007] To achieve the aforementioned objective, this utility model provides a locking device disposed on an electrical unit. The electrical unit has a first side plate and a second side plate facing each other. The locking device is characterized by being disposed adjacent to the front end of the electrical unit and including an elastic locking part and a protrusion. The elastic locking part is disposed on the first side plate. When the electrical unit is inserted into one of a plurality of chassis housings along a first direction, wherein the plurality of chassis housings are arranged side-by-side and a partition is provided between any two adjacent units, the elastic locking part locks the electrical unit onto the chassis housing and interferes with another electrical unit adjacent to the partition near the first side plate. The protrusion is disposed near the front end of the elastic locking part and protrudes outward from the surface of the elastic locking part along a second direction perpendicular to the first direction. When another adjacent electrical unit is inserted into the chassis housing along the first direction or moved out of the chassis housing in the opposite direction, the protrusion drives the elastic locking part to move in the opposite direction to the second direction, allowing the elastic locking part to release interference from the other adjacent electrical unit.

[0008] In one embodiment, the elastic locking part further includes an elastic plate, a latching part, and a pressing plate. The elastic plate extends along a first side plate of the electrical unit and has a first end and a second end opposite to each other, as well as a first surface and a second surface opposite to each other. The first end is connected to the first side plate of the electrical unit, the second end extends outward from the front end, and the first surface is close to the first side plate along a second direction, which is perpendicular to the first direction. The latching part is disposed on the first surface of the elastic plate, located between the first end and the second end, protruding along the second direction and allowing a through-hole to pass through the first side plate and the partition. The protrusion is disposed at the second end of the elastic plate, protruding from the first surface along the second direction. The pressing plate is connected to the second end of the elastic plate, protruding from the front end of the electrical unit, and is disposed adjacent to the protrusion, allowing the elastic plate to be bent under force and causing the protrusion and the latching part to displace in the opposite direction to the second direction.

[0009] In one embodiment, the electrical unit is one of a power supply unit (PSU), a capacitor backup unit (CBU), or a battery backup unit (BBU).

[0010] In one embodiment, when the electrical unit is locked in one of a plurality of chassis housings, a rear end of the electrical unit is electrically connected to the corresponding chassis housing, and the front end and the rear end are two opposite ends in a first direction.

[0011] In one embodiment, the electrical unit further includes a snap-fit ​​slot disposed on the second side plate.

[0012] In one embodiment, two locking devices are respectively disposed on two electrical units to form an identical first electrical unit and second electrical unit. The first electrical unit and the second electrical unit are respectively locked to two adjacent ones in a plurality of chassis housings. The first side plate of the first electrical unit and the second side plate of the second electrical unit are respectively attached to two opposite sides of a partition. The latching part of the locking device on the first electrical unit penetrates the partition and engages with the latching through groove of the second electrical unit. The protrusion of the locking device on the first electrical unit interferes with the front end of the second electrical unit in a first direction.

[0013] In one embodiment, the pressing plate of the locking device on the first electrical unit allows the elastic plate to be bent under force and drive the latch and protrusion to move in the opposite direction to the second direction, and allows the first electrical unit to disengage from the corresponding chassis housing in the opposite direction to the first direction.

[0014] In one embodiment, the protrusion includes an inwardly pushing slope that increases the height relative to the first surface to a first protrusion height in the opposite direction to the first direction.

[0015] In one embodiment, when the second electrical unit moves out of the corresponding chassis housing in the opposite direction to the first direction, the front end of the second electrical unit pushes against the inner pushing slope of the protrusion of the locking device on the first electrical unit, causing the latching part on the first electrical unit to disengage from the latching slot of the second electrical unit.

[0016] In one embodiment, the protrusion further includes an outward pushing slope located between the inner pushing slope and the pressing plate, with the height relative to the first surface decreasing from the first protrusion height in the opposite direction to the first direction.

[0017] In one embodiment, when the second electrical unit is inserted into the corresponding chassis housing along the first direction, the rear end of the second electrical unit pushes against the outward pushing slope of the protrusion of the locking device on the first electrical unit, causing the latching part on the first electrical unit to move into the first side plate and partition.

[0018] In one embodiment, the latching portion has a second protruding height relative to the first surface of the elastic plate, the second protruding height ranging from 2 mm to 4 mm.

[0019] In one embodiment, the first protrusion height is greater than the second protrusion height.

[0020] In one embodiment, the elastic plate is fixed to the first side plate by a fastener.

[0021] In one embodiment, the elastic plate, the snap-fit ​​portion, and the pressing plate are integrally formed from a single metal sheet.

[0022] In one embodiment, the protrusion includes a soft material connected to the first side of the elastic plate.

[0023] In one embodiment, the elastic plate further includes an offset segment located between the first end and the snap-fit ​​portion. The offset segment is offset toward the second surface to form a groove, which is used to assemble and engage a gasket on the first side plate.

[0024] In one embodiment, the pressing plate further includes a pressing part that is offset from the first surface toward the second surface to form a step.

[0025] In one embodiment, the pressing part is displaced in the opposite direction to the second direction under force, resisting the elastic restoring force of the elastic plate and causing the snap-fit ​​part to be housed in the first side plate.

[0026] In one embodiment, the elastic plate further includes a bending portion disposed adjacent to the first end, wherein the first surface is pre-bent so that when the first end is fixed to the first side plate, the first surface of the elastic plate abuts against the first side plate and provides elastic force to maintain the buckle portion passing through the first side plate.

[0027] In one embodiment, the electrical unit further includes a fan module, which is disposed adjacent to the front end and the second side panel.

[0028] The beneficial effects of this utility model are that its embodiments provide a locking device for electrical units, solving space utilization problems in areas such as servers, power supply units, capacitor backup units, or battery backup units. By setting up this locking device, the space in the width and length directions of each electrical unit can be fully utilized, enabling the locking of multiple electrical units within the chassis, while simultaneously improving the space utilization rate of the electrical units. Furthermore, the thrust generated by the electrical units pushing against the protrusions of the locking device during insertion or removal allows for self-pressing of adjacent locking devices, facilitating operation. Attached Figure Description

[0029] The following detailed description of the present invention and the schematic diagrams of the embodiments are intended to enable those skilled in the art to fully understand the above content, and are not intended to limit the present invention.

[0030] Figure 1 The schematic diagram shows a three-dimensional structure of the electrical unit locked to the chassis housing by a locking device in an embodiment of the present invention.

[0031] Figure 2 The schematic diagram shows a three-dimensional structural view of the electrical unit combined with the locking device in an embodiment of the present invention.

[0032] Figure 3 The schematic diagram shows a perspective view of the electrical unit combined with the locking device in an embodiment of the present invention.

[0033] Figure 4 The diagram schematically illustrates an exploded view of the internal components of the electrical unit corresponding to the locking device in an embodiment of the present invention.

[0034] Figure 5 The diagram illustrates a bottom view of the locking device in an embodiment of the present invention.

[0035] Figure 6 This schematically illustrates a perspective view of the structure in which the locking device is fixed to the first side plate of the electrical unit in an embodiment of the present invention.

[0036] Figure 7 The schematic diagram shows a bottom view of the locking device being fixed to the first side plate of the electrical unit in an embodiment of the present invention.

[0037] Figure 8 The schematic diagram illustrates how the first electrical unit and the second electrical unit in an embodiment of the present invention are locked to two adjacent housing seats by locking devices.

[0038] Figure 9 This schematic diagram illustrates the placement or removal of the second electrical unit relative to the first electrical unit into or out of the corresponding housing receiving seat in an embodiment of the present invention. Detailed Implementation

[0039] Some typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different ways, all of which do not depart from the scope of this utility model, and the descriptions and drawings herein are for illustrative purposes only and not for limiting this utility model. For example, if the following description of a first feature disposed on or above a second feature indicates that it includes embodiments where the first and second features are in direct contact, and also includes embodiments where additional features may be disposed between the first and second features, so that the first and second features may not be in direct contact. Furthermore, different embodiments in this disclosure may use repeated reference numerals and / or markings. These repetitions are for simplification and clarity and are not intended to limit the relationships between the various embodiments and / or the described appearance structures. Moreover, to facilitate the description of the relationship between one component or feature and another (plural) component or feature in the drawings, spatially related terms such as "front," "rear," "left," "right," "top," "bottom," and similar terms may be used. In addition to the orientations shown in the accompanying drawings, spatially relevant terms are used to cover different orientations of the device in use or operation. The device may also be otherwise positioned (e.g., rotated 90 degrees or located in other orientations), and the descriptions of the spatially relevant terms used will be interpreted accordingly. Furthermore, when a component is referred to as "connected to" or "coupled to" another component, it may be directly connected to or coupled to the other component, or there may be intervening components. Although the numerical ranges and parameters of the broad scope of this disclosure are approximate, values ​​are stated as precisely as possible in specific examples. Additionally, it is understood that while terms such as "first," "second," etc., may be used in the claims to describe different components, these components should not be limited by these terms, and the components described accordingly in the embodiments are represented by different component symbols. These terms are used to distinguish different components. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component without departing from the scope of the embodiments. The term "and / or" as thus used includes any or all combinations of one or more of the related listed items. Except in operational / working instances, or unless expressly stated otherwise, all numerical ranges, quantities, values, and percentages disclosed herein (e.g., angles, durations of time, temperatures, operating conditions, quantity ratios, and those percentages thereof) should be understood to be modified by the terms “approximately” or “substantially” in all embodiments. Accordingly, unless indicated to the contrary, the numerical parameters set forth in this disclosure and the appended claims are approximate values ​​that may vary as necessary. For example, each numerical parameter should be interpreted at least according to the number of significant figures stated and by applying ordinary rounding principles. Ranges may be expressed herein as from one endpoint to another or between two endpoints. All ranges disclosed herein include endpoints unless otherwise specified.

[0040] Figure 1 The schematic diagram shows a three-dimensional structure of the electrical unit locked to the chassis housing by a locking device in an embodiment of the present invention. Figure 2 The schematic diagram shows a three-dimensional structural view of the electrical unit combined with the locking device in an embodiment of the present invention. Figure 3 The schematic diagram shows a perspective view of the electrical unit combined with the locking device in an embodiment of the present invention. Figure 4 The diagram schematically illustrates an exploded view of the internal components of the electrical unit corresponding to the locking device in an embodiment of the present invention. Figure 5 The diagram illustrates a bottom view of the locking device in an embodiment of the present invention. Figure 6 This schematically illustrates a perspective view of the structure in which the locking device is fixed to the first side plate of the electrical unit in an embodiment of the present invention. Figure 7This schematic diagram shows a bottom view of the locking device fixed to the first side plate of the electrical unit in an embodiment of the present invention. The present invention provides a locking device 2, disposed on electrical units 1, 1a, and 1b. Electrical units 1, 1a, and 1b are, for example, one of a power supply unit (PSU), a capacitor backup unit (CBU), or a battery backup unit (BBU). The locking device 2, after being disposed on electrical units 1, 1a, and 1b, has the same structure. Any electrical unit 1, 1a, or 1b can be placed into one of a plurality of chassis housings 90 in the chassis 9 along a first direction (i.e., the opposite Y-axis direction). In this embodiment, the plurality of chassis housings 90 are arranged side-by-side along the X-axis direction, with a partition 91 between any two adjacent chassis housings 90. In addition to being arranged along the X-axis, the chassis housings 90 can also be stacked along the Z-axis direction to form a chassis with multiple layers of accommodating space. It should be noted that the locking device 2 has the same structure after being installed on electrical units 1, 1a, and 1b. The following description of the relationship between the locking device 2 and electrical unit 1 is not intended to limit the present invention. In this embodiment, electrical unit 1 has a first side plate 11 and a second side plate 12 that are opposite to each other. The locking device 2 is, for example, installed on the first side plate 11 and adjacent to the front end 13 of electrical unit 1. When electrical unit 1 is locked to one of the plurality of chassis housing seats 90 on chassis 9 by the locking device 2, a rear end 14 of electrical unit 1 is electrically connected to the corresponding chassis housing seat 90, and the front end 13 and the rear end 14 are two opposite ends in the first direction (i.e., the opposite Y-axis direction). In this embodiment, the locking device 2 includes at least an elastic locking part and a protrusion 23, which are arranged sequentially along the first direction. The elastic locking part is integrally formed by an elastic plate 21, a snap-fit ​​part 22, and a pressing plate 24. When electrical units 1, 1a, and 1b are housed in the chassis housing 90, the elastic locking part locks electrical units 1, 1a, and 1b onto the chassis housing 90, and interferes with another electrical unit adjacent to the partition 91 near the first side plate 11. For example, when electrical units 1a and 1b are both placed in their respective chassis housings 90, the elastic locking part of electrical unit 1a will interfere with electrical unit 1b. In this embodiment, the elastic plate 21 extends along the first side plate 11 of electrical unit 1, parallel to the first direction (i.e., the reverse Y-axis direction). The elastic plate 21 has a first end 211 and a second end 212 that are opposite to each other in the first direction (i.e., the reverse Y-axis direction), and a first surface 213 and a second surface 214 that are opposite to each other in the second direction (i.e., the X-axis direction), the second direction being perpendicular to the first direction. In this embodiment, the first end 211 of the elastic plate 21 is connected to the inner wall surface of the first side plate 11 of the electrical unit 1, the second end 212 extends outward along the Y axis from the front end 13 of the electrical unit 1, and the first surface 213 of the elastic plate 21 is close to the inner wall surface of the first side plate 11.In this embodiment, the latching part 22 is disposed on the first surface 213 of the elastic plate 21, located between the first end 211 and the second end 212, protruding along the second direction (i.e., the X-axis direction) and allowing passage through the through slot 110 through the first side plate 11. Furthermore, the protrusion 23 is disposed on the second end 212 of the elastic plate 21, protruding from the first surface 211 of the elastic plate 21 along the second direction (i.e., the X-axis direction), and spatially opposite the latching part 22 of the elastic locking part. In this embodiment, when any electrical unit 1, 1a, or 1b is housed in the chassis housing 90, the elastic plate 21 can maintain the latching part 22 penetrating through the opening 92 on the first side plate 11 and the partition 91. The latching part 22 of the elastic locking part locks the electrical units 1, 1a, or 1b onto the chassis housing 90, and maintains that the latching part 22 of the elastic locking part interferes with another electrical unit adjacent to the partition 91 in the first direction (i.e., the reverse Y-axis direction). In this embodiment, the pressing plate 24 is connected to the second end 212 of the elastic plate 21, protrudes from the front end 13 of the electrical unit 1 through the window 130 on the front end 13, and is disposed adjacent to the protrusion 23. This allows the elastic plate 21 to be bent under force, causing the latching part 22 and the protrusion 23 to displace in the opposite direction to the second direction, i.e., in the reverse X-axis direction. On the other hand, since the protrusion 23 is disposed on the elastic plate 21 of the elastic locking part along the second direction (i.e., the X-axis direction) and close to the front end 13, when the protrusion 23 is subjected to a force opposite to the second direction, the protrusion 23 allows the elastic locking part to displace in the opposite direction to the second direction, and allows the latching part 22 of the elastic locking part to disengage from the adjacent electrical unit. For ease of explanation, some structures of the front end 13 can be omitted, such as... Figure 4 and Figure 6 This is not a limitation of the present invention. When the latching part 22 and the protrusion 23 are displaced in the opposite direction to the second direction and are no longer interfered with by the partition 91, the electrical unit 1 is allowed to disengage from the corresponding chassis housing 90 in the opposite direction to the first direction, that is, in the Y-axis direction.

[0041] In this embodiment, the elastic plate 21, the latching part 22, and the pressing plate 24 of the locking device 2 can be integrally formed from a single metal sheet by stamping or bending, forming a single structural component, namely the elastic locking part. The first end 211 of the elastic plate 21 can be fixed to the inner wall surface of the first side plate 11 by fasteners such as rivets (not shown), so that the first surface 213 of the elastic plate 21 is in contact with the inner wall surface of the first side plate 11. The protrusion 23 can be a protrusion made of a soft material such as plastic or rubber, which is connected to the first surface 213 of the elastic plate 21 by snapping, threaded connection, or heat fusion to avoid scratching the casing. Of course, in other embodiments, the protrusion 23 can also be integrally formed from a single metal sheet by stamping or bending, along with the elastic plate 21, the latching part 22, and the pressing plate 24; this invention is not limited to this.

[0042] In this embodiment, the elastic plate 21 further includes an offset segment 215 located between the first end 211 of the elastic plate 21 and the snap-fit ​​portion 22. The offset segment 25 is offset toward the second surface 214 (i.e., in the reverse X-axis direction) to form a groove, which is used to engage with a gasket 15 on the first side plate 11. In addition to the gasket 15 on the first side plate 11, similar gaskets are also provided on the top plate, bottom plate, and other side plate of the electrical unit 1 as EMI gaskets, used to connect with the inner wall of the chassis housing 90 when the electrical unit 1 is placed into or removed from the chassis housing 90. The EMI gaskets can effectively limit the electromagnetic interference generated by the internal devices of the power supply unit 1 to the inside of the power supply unit 1, while preventing external electromagnetic interference from entering the power supply unit 1, ensuring the normal operation of the power supply unit 1 itself and the electromagnetic compatibility of surrounding electronic devices. Of course, this utility model is not limited to this. In this embodiment, the pressing plate 24 further includes a pressing part 241, which is offset from the first surface 213 of the elastic plate 21 towards the second surface 214 (i.e., in the opposite X-axis direction) to form a step. When the pressing part 241 is subjected to force and displaces in the opposite direction to the second direction, it resists the elastic restoring force of the elastic plate 21 and drives the latching part 22 to be housed in the first side plate 11, thereby releasing the interference between the latching part 22 and the partition 91 of the chassis housing 90.

[0043] It is worth noting that, in this embodiment, the elastic plate 21 also includes a bending portion 216, which is disposed adjacent to the first end 211 of the elastic plate 21. By pre-bending the first surface 213 to form a bending angle A, when the first surface 213 at the first end 211 is fixed to the inner wall surface of the first side plate 11 by means of, for example, rivets or other fasteners, the first surfaces 213 at other locations of the elastic plate 21 also abut against the inner wall surface of the first side plate 11, thereby providing elastic force to maintain the latching portion 22 of the locking device 2 penetrating the first side plate 11 of the electrical unit 1. When the electrical unit 1 is placed into one of the multiple side-by-side chassis housings 90, the elastic plate 21 of the locking device 2 will maintain the latching portion 22 penetrating the partition 91 between the first side plate 11 and the chassis housing 90, further interfering with another adjacent electrical unit. The thickness of the partition 91 can be reduced accordingly, thereby increasing the space in the width direction of the electrical unit 1, realizing the installation of multiple electrical units 1 in the chassis 9, and solving the space utilization problem of the electrical unit 1. For example, in this embodiment, the electrical unit 1 may include a fan module 16 and a handle 17, which may be arranged adjacent to the front end 13 and the second side plate 12. By providing the locking device 2 of this invention, the space in the width and length directions of each electrical unit 1 can be fully utilized to lock multiple electrical units 1 in the chassis 9, while simultaneously improving the space utilization rate of the electrical units 1. Of course, this invention is not limited thereto.

[0044] On the other hand, when two identical electrical units 1 are respectively locked to adjacent locations in a plurality of chassis housings by the locking device 2 of this utility model, the two electrical units 1 will respectively adhere to opposite sides of the partition 91 with the first side plate 11 and the second side plate 12. In addition to the through groove 110 on the first side plate 11, the electrical unit 1 also includes a snap-fit ​​through groove 120 (such as... Figure 3 As shown), it is disposed on the second side plate 12 and engages with the latching part 22 on another electrical unit 1. In this embodiment, the two locking devices 2 are respectively disposed on the two electrical units 1 to form the same first electrical unit 1a and second electrical unit 1b. Figure 8 The schematic diagram illustrates how the first electrical unit and the second electrical unit in an embodiment of the present invention are locked to two adjacent housing seats by locking devices. Figure 9 This diagram schematically illustrates the insertion or removal of the second electrical unit relative to the first electrical unit into or out of the corresponding housing housing in an embodiment of the present invention. Of course, the first electrical unit 1a and the second electrical unit 1b have the same external structure and can be installed and used alternately. In this embodiment, the application of two adjacent housing housings is explained using the first electrical unit 1a and the second electrical unit 1b, which is not intended to limit the present invention; this is merely a preliminary explanation. (Reference) Figures 1 to 9 In this embodiment, the first electrical unit 1a and the second electrical unit 1b are respectively locked to two adjacent units in the plurality of chassis housings 90, with the first electrical unit 1a located, for example, on the right side and the second electrical unit 1b located, for example, on the left side. The first side plate 11 of the first electrical unit 1a and the second side plate 12 of the second electrical unit 1b are respectively attached to opposite sides of the partition 91. Since the locking device 2 is disposed on the first side plate 11, the latching portion 22 of the locking device 2 on the first electrical unit 1a penetrates through the opening 92 on the partition 91 and engages with the latching through groove 120 of the second side plate 12 of the second electrical unit 1b, thus securely locking the first electrical unit 1a and the second electrical unit 1b to the chassis 9. Furthermore, the protrusion 23 of the locking device 2 on the first electrical unit 1a interferes with the front end 13 of the second electrical unit 1b in the first direction (i.e., the reverse Y-axis direction).

[0045] In this embodiment, the pressing plate 24 of the locking device 2 on the first electrical unit 1a allows the elastic plate 21 to be bent under force, causing the latching part 22 and the protrusion 23 to move in the opposite direction to the second direction. Once the latching part 22 disengages from the opening 92 of the partition 91, the first electrical unit 1a can disengage from the corresponding chassis housing 90 in the opposite direction to the first direction. On the other hand, the installation and disengagement of the second electrical unit 1b can also be achieved simply by operating the locking device 2 on the second electrical unit 1b. Further explanation follows.

[0046] In this embodiment, to prevent the operator from being affected by the protrusion 23 of the locking device 2 on the first electrical unit 1a when inserting or removing the second electrical unit 1b, each protrusion 23 of the locking device 2 includes an inner pushing slope 231 and an outer pushing slope 232. The inner pushing slope 231 increases the height relative to the first surface 213 to a first protrusion height D1 in the opposite direction of the first direction (i.e., the Y-axis direction). The outer pushing slope 232 connects to the inner pushing slope 231 and is located between the inner pushing slope 231 and the pressing plate 24, decreasing in height relative to the first surface 231 from the first protrusion height D1 in the opposite direction of the first direction (i.e., the Y-axis direction). When the operator moves the second electrical unit 1b out of the housing accommodating seat 90 along the Y-axis direction, the locking device 2 on the adjacent first electrical unit 1a will release the interference through the action of the inner pushing slope 231 of the protrusion 23, allowing the operated second electrical unit 1b to be moved out smoothly. In other words, when the second electrical unit 1b moves out of the corresponding chassis housing 90 in the opposite direction to the first direction, the front end 13 of the second electrical unit 1b pushes against the inner pushing slope 231 of the protrusion 23 of the locking device 2 on the first electrical unit 1a, causing the latching part 22 on the first electrical unit 1a to disengage from the latching slot 120 of the second electrical unit 1b. Furthermore, when the operator places the second electrical unit 1b into the chassis housing 90 in the first direction (i.e., the opposite Y-axis direction), the locking device 2 on the adjacent first electrical unit 1a will release interference through the outer pushing slope 232 of the protrusion 23, allowing the second electrical unit 1b to be smoothly placed in. In other words, when the second electrical unit 1b is placed into the corresponding chassis housing 90 in the first direction (i.e., the opposite Y-axis direction), the rear end 14 of the second electrical unit 1b (see...) Figure 2 The locking device 2 can push against the outward pushing slope 232 of the protrusion 23 on the first electrical unit 1a, causing the latching part 22 on the first electrical unit 1a to move into the first side plate 11 and the partition 91. When the second electrical unit 1b is fully inserted into the housing accommodating seat 90, the protrusion 23 on the locking device 2 on the first electrical unit 1a no longer interferes with the second electrical unit 1b. Then, the latching part 22 on the locking device 2 on the first electrical unit 1a is allowed to pass through the opening 92 on the partition 91 and engage with the latching through groove 120 of the second side plate 12 of the second electrical unit 1b, so that the first electrical unit 1a and the second electrical unit 1b are securely locked in the housing 9. In this embodiment, the latching part 22 of each locking device 2 has a second protrusion height D2 relative to the first surface 213 of the elastic plate 21, and the second protrusion height D2 ranges from 2mm to 4mm. By designing the first protrusion height D1 to be greater than the second protrusion height D2, the electrical unit 1 can be inserted or removed to push against the protrusion 23 of the locking device 2, thereby generating a thrust and enabling the adjacent side locking devices 2 to be pressed automatically, facilitating operation. Of course, this utility model is not limited to this, and will not be elaborated further.

[0047] In summary, this utility model provides a locking device for an electrical unit. The elastic plate, latching part, and pressing plate of the locking device can be integrally formed from a metal sheet to form the elastic locking part. The locking device is disposed at the front end of the housing of the electrical unit, located on the first side plate. The latching part of the locking device protrudes outward from the elastic plate and penetrates through the first side plate. When the electrical unit is placed into one of a plurality of side-by-side housings, the elastic plate will maintain the latching part through the partition between the first side plate and the housing, further interfering with the adjacent electrical unit. Therefore, the thickness of the partition can be reduced accordingly, thereby increasing the space in the width direction of the electrical unit, which is beneficial for the placement of internal components and improves the overall space utilization of the electrical unit. It is worth noting that when two identical electrical units are locked to adjacent housings in a plurality of housings by the locking device of this utility model, the two electrical units are respectively attached to opposite sides of the partition by the first side plate and the second side plate. Because the locking device is located on the first side plate, the latching part of the locking device on the electrical unit that is attached to the partition on the first side plate not only penetrates the partition but also engages with the latching slot on the second side plate of another electrical unit, thus securing the two electrical units firmly to the chassis. Furthermore, to prevent the operator from being affected by the locking device of the adjacent electrical unit when inserting or removing a single electrical unit, the locking device of this invention has a protrusion at the front end near the pressing plate, including inward and outward pushing slopes, spatially opposite the latching part of the elastic locking part, and the protrusion height of the protrusion is greater than that of the latching part. When the operator pushes or pulls a single electrical unit, the locking device on the adjacent electrical unit will, through the inward and outward pushing slopes of the protrusion, simultaneously disengage the corresponding elastic locking part, allowing the electrical unit to be inserted or removed smoothly. In other words, through the design of the locking device of this invention, the space in the width and length directions of each electrical unit can be fully utilized to achieve the locking of multiple electrical units in the chassis, while improving the space utilization rate of the electrical units. Furthermore, by using the insertion or removal stroke of the electrical unit to push against the protrusion of the locking device to generate thrust, the locking devices on adjacent sides can be pressed automatically, making operation convenient.

[0048] This utility model may be modified in various ways by those skilled in the art, but all such modifications shall not depart from the protection sought by the appended claims.

Claims

1. A locking device disposed on an electrical unit having a first side plate and a second side plate facing each other, characterized in that, The locking device is disposed adjacent to one front end of the electrical unit and includes: An elastic locking part is provided on the first side plate. When the electrical unit is inserted into one of a plurality of chassis housings along a first direction, wherein the plurality of chassis housings are arranged side by side and a partition is provided between any two adjacent ones, the elastic locking part locks the electrical unit onto the chassis housing and interferes with another electrical unit adjacent to the partition near the first side plate. A protrusion is disposed on the elastic locking part near the front end, protruding outward from the surface of the elastic locking part along a second direction perpendicular to the first direction. When the adjacent electrical unit is inserted into the corresponding chassis housing along the first direction or moved out in the opposite direction, the protrusion drives the elastic locking part to move in the opposite direction, allowing the elastic locking part to disengage from the adjacent electrical unit.

2. The locking device of claim 1, wherein, The resilient locking mechanism includes: An elastic plate extends along the first side plate of the electrical unit, and the elastic plate has a first end and a second end opposite to each other, and a first surface and a second surface opposite to each other. The first end is connected to the first side plate of the electrical unit, the second end extends outward from the front end, and the first surface is close to the first side plate. A latching portion is disposed on the first surface of the elastic plate, located between the first end and the second end, protruding along a second direction and allowing a through-hole to pass through the first side plate and the partition plate; wherein the protrusion is disposed at the second end of the elastic plate, protruding from the first surface along the second direction; and A pressing plate, connected to the second end of the elastic plate, protrudes from the front end of the electrical unit and is disposed adjacent to the protrusion, allowing the elastic plate to be bent under force and causing the protrusion and the latching part to move in the opposite direction to the second direction.

3. The locking device of claim 1, wherein, The electrical unit includes one of a power supply unit, a capacitor backup unit, or a battery backup unit.

4. The locking device of claim 1, wherein, When the electrical unit is locked in one of the plurality of chassis housings, a rear end of the electrical unit is electrically connected to the corresponding chassis housing, and the front end and the rear end are two opposite ends of the first direction.

5. The locking device of claim 2, wherein, The electrical unit also includes a snap-fit ​​slot located on the second side panel.

6. The locking device of claim 5, wherein, Two locking devices are respectively disposed on two electrical units to form an identical first electrical unit and a second electrical unit. The first electrical unit and the second electrical unit are respectively locked to two adjacent ones in the plurality of chassis housings. The first side plate of the first electrical unit and the second side plate of the second electrical unit are respectively attached to two opposite sides of the partition. The latching part of the locking device on the first electrical unit penetrates the partition and engages with the latching through groove of the second electrical unit. The protrusion of the locking device on the first electrical unit interferes with the front end of the second electrical unit in the first direction.

7. The locking device of claim 6, wherein, The pressing plate of the locking device on the first electrical unit allows the elastic plate to be bent under force and drive the latch and the protrusion to move in the opposite direction to the second direction, and allows the first electrical unit to disengage from the corresponding chassis housing in the opposite direction to the first direction.

8. The locking device of claim 6, wherein, The protrusion includes an inwardly pushing slope that increases the height relative to the first surface in the opposite direction to the first direction to a first protrusion height.

9. The locking device as claimed in claim 8, characterized in that, When the second electrical unit moves out of the corresponding chassis housing in the opposite direction to the first direction, the front end of the second electrical unit pushes against the inner pushing slope of the protrusion of the locking device on the first electrical unit, causing the latching part on the first electrical unit to disengage from the latching slot of the second electrical unit.

10. The locking device of claim 8, wherein, The protrusion also includes an outward pushing slope located between the inner pushing slope and the pressing plate, with the height relative to the first surface decreasing from the first protrusion height in the opposite direction to the first direction.

11. The locking device of claim 10, wherein, When the second electrical unit is inserted into the corresponding chassis housing along the first direction, a rear end of the second electrical unit pushes against the outward pushing slope of the protrusion of the locking device on the first electrical unit, causing the latching part on the first electrical unit to move into the first side plate and the partition.

12. The locking device of claim 8, wherein, The latching part has a second protrusion height relative to the first surface of the elastic plate, and the second protrusion height ranges from 2mm to 4mm.

13. The locking device of claim 12, wherein, The first protrusion height is greater than the second protrusion height.

14. The locking device of claim 2, wherein, The elastic plate is fixed to the first side plate by a fastener.

15. The locking device of claim 2, wherein, The elastic plate, the buckle, and the pressing plate are integrally formed from a single metal sheet.

16. The locking device of claim 2, wherein, The protrusion includes a soft material that connects to the first surface of the elastic plate.

17. The locking device of claim 2, wherein The elastic plate also includes an offset section located between the first end and the snap-fit ​​portion. The offset section is offset toward the second surface to form a groove, which is used to assemble and engage a gasket on the first side plate.

18. The locking device of claim 2, wherein, The pressing plate also includes a pressing part that is offset from the first surface toward the second surface to form a step.

19. The locking device of claim 18, wherein, The pressing part is displaced in the opposite direction to the second direction when subjected to force, resisting the elastic restoring force of the elastic plate and causing the buckle part to be retracted into the first side plate.

20. The locking device as claimed in claim 2, characterized in that, The elastic plate also includes a bending portion disposed adjacent to the first end, wherein the first surface is pre-bent so that when the first end is fixed to the first side plate, the first surface of the elastic plate abuts against the first side plate and provides elastic force to maintain the buckle portion passing through the first side plate.

21. The locking device of claim 1, wherein, The electrical unit also includes a fan module, which is disposed adjacent to the front end and the second side panel.

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